Oil burner



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D. w. MCCULLOQH OIL BURNER y Filed March 14, 19231 DIM/14062432061?,

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DOYLE W. MOCULLOCH, OF BLACKWELL, OKLAEGMA.

on. BURNER.

Application tiled March 14, 1923. Serial No. 625,026.

To all, whom t may cof/wem:

Be it known that I, Dom W. MoCuL- LooH, a citizen of the United States, residing at Blackwell, in the county of Kay and State of Oklahoma, have invented certain as arranged for use Fig. 2 is a central vertical section through the burner, and

Fig. 3 is a horizontal sectlon on the line 3-3 of Fig. 2.

In carrying out my invention, I employ a bracket or collar 1 which'may be bolted upon any internal (projection or statlonary part of a stove an through this collai` .1s tted a pi e 2 which is adjustably held 1n the collar hy a set screw 3 mounted in the latter and bearing upon the pipe. The ends of this ipe are open and arranged concentricallj7 thereinl is an inner pipe 4 which is relatively of small diameter, the inner pipe projecting through and above the upper end of the outer pipe and having a cap or damper 5 secured thereon by a set screw 6. The damper cap may be secured in place so as to bear directly upon the upper end of the outer pipe 2 or it may be spaced any desired distance therefrom in an obvious manner and the flow of heated currents through the pipe may be thus regulated. To maintain the proper relation'of the inner pipe to the outer pipe and secure itD therein I provide stationary pins or studs 7 which are ixed\in the wall of the outer pipe and are adapted to bear against the inner pipe and constitute rests for the same, as will be readily understood upon reference to Fig. 3. Coacting with these pins or rests 7, set screws 8 are' mounted in the wall ofthe outer pipe and'adapted tobear against the inner pipe so that the said inner pi e will be clamped against the rests or pins when the set screws are turned home. I also employ a retarding element 9 which is preferably composed of two strands of wire twisted together, as clearly shown, and having their upper extremities bent laterally, as shown at .10, soas to rest upon the'upper end of the lnner pipe when in use and be thereby supported. The oil or other liquid fuel is supplied to the burner through a feed ipe 11 equi pecl with a regulating or cut-og' valve 12 w ereby the iow of the fuel may be easily adjusted, the said valve being so arranged that the fuel issuing therefrom will drop onto the wick 9 or into the bore of the inner pipe 4. Below the pipes 2 and 4 and spaced therefrom but in axial alinement therewith is a splash plate 13 having a circular rib 14 upon its u per surface, the under surface of said plate ing provided with a rim 15 so that the plate may rest upon a grate having a raised center and clear the raised portion. The burner may be arranged within any heatin stove, the splash plate being placed upon t e grate of the stove and the pipes or concentric burner tubes being supported vertically Within the fire-box of the stove above the splash plate, while the supply ipe and regulating valve may be supported 1n any convenient or preferred manner within the stove so as to discharge the fuel as desired. Initially, a small supply of the fuel is permitted to flow onto the splash plate, and this fuel is ignited sothat the resulting flame will play upon the ends of the pipes and heat the same so that fuel subsequently fed to the burner tubes will be quickly vaporized and will ignite at once las it issues in the form of vapor from the lower end of the inner pipe. The outer pi e provides for the admission of air to the ame and a circulation of air about and through the tubes which will prevent overheating and consequent warping or cracking of the tubes while at the same time suicient heat will be retained therein to facilitate the vaporization of the fuel. The flame, of course, will play upon and about the splash plate which will uickly be raised in temperature, and it will, t erefore, preferably be constructed of some refractory material so that it will prove durable notwithstanding the high temperatures to which it is subjected. The heating of this plate will, of course, aid in instantly vaporizin the liquid fuel which may pass from the urner tubes in the liquid state so that the combustion will be complete and there will be very little, if any, deposit of soot or other carbon. Actual use of the device by me has shown that, if the device be proper1 adjusted, the combustion will be perfect an no carbon' will be deposited. .The wick holds the fuel to the sides of the pipe so that flow will be retarded and the oil or other fue] will flow down the wall of the tube in a very small volume. Should a hotter re be desired, the Wick may be raised and will then obstruct the flow through a shorter length of the inner tube and the oil may iow with greater rapidity so that the'flame at the hot plate will be fed faster and will thereby be maintained in a more intense state.

Havin thus described the invention, what is claime as new is:

A liquid fuel burner comprising concentric open-ended burner tubes, spaced rests within the outer tube bearing against the inner tube, securing members mounted in the Wall of the outer tube and engaging the inner tube and cooperating with the rests to secure the inner tube in place, a splash plate disposed below and in spaced relation to and in axial alinement with the burner tubes, and means for supplying-fuel to the inner burner tube at the upper end of the same.

In testimony whereof I aiiix my signature.

DOYLE W. MCCULLOCH. [14.5.] 

